32 CFR § 1630.31
Class 3-A-S: Registrant deferred because of hardship to dependents (separated)
July 1, 2020
Any registrant who has been separated from active military service by reason of dependency or hardship shall be placed in Class 3-A-S unless his period of military service qualifies him for Class 4-A or 1-D-E. No registrant shall be retained in Class 3-A-S for more than six months.
[52 FR 24456, July 1, 1987]